.btn {
  width: 200px;
  height: 50px;
  font-size: 20px;
  color: white;
  background-color: #006DCC;
  border: 0px;
  border-radius: 10px
}
.btn:hover {
  box-shadow: 0 0 5px 5px darkgray;
}

.dialog {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0, 0, 0, 0.4);
}

.content {
  width: 500px;
  height: 300px;
  margin: 100px auto;
  background-color: #fefefe;
  border-radius: 10px;
  box-shadow: 0 0 5px 5px darkgray;
}
.aclose{
  width: 500px;
  height: 60px;
  text-align: center;
}
.aclose span{
  line-height: 70px;
  font-size: 26px;
  font-weight: 700;
}
.contain{
  width: 500px;
  height: 230px;
  font-size: 20px;
  margin-top: 10px;
  text-align: center;
}

.close {
  color: #aaa;
  float: right;
  margin-right: 15px;
  font-size: 40px;
  font-weight: bold;
  text-decoration: none;
}

.input-item {
  display: block;
  width: 90%;
  margin-bottom: 20px;
  border: 0;
  padding: 10px;
  border-bottom: 1px solid rgb(128, 125, 125);
  font-size: 15px;
  outline: none;
}

.input-item:placeholder {
  text-transform: uppercase;
}